Grassland Viper

Perambulate {x}{g}{g} |
------------------------------ | Reach
Instant — Adventure |
------------------------------ | If a land entering the
Search your library for | battlefield causes a
up to X basic land cards,| triggered ability of a
reveal them, put them | permanent you control
into your hand, then | to trigger, that ability
shuffle your library. | triggers an additional
. | time.
. |